#include "Mystdio.h"
#include <unistd.h>
#define myfile "test.txt"

int main()
{
  _FILE *fp = _fopen(myfile,"a");
  if (fp == NULL) return 1;

  const char *msg = "hello linux\n";
  int cnt = 10;
  while (cnt--)
  {
    _fwrite(fp, msg, strlen(msg));
    sleep(1);
  }

  _fclose(fp);

  return 0;
}
